NEET2021Physics-Electrostatics

NEET 2021 Physics Charge Distribution on Conductors MCQ Question

Type: MCQ-conceptual-Medium-Class 12

Two charged spherical conductors of radius R₁ and R₂ are connected by a wire. Then the ratio of surface charge densities of the spheres (σ₁/σ₂) is :

A

R1R2\frac{R_1}{R_2}

B

R2R1\frac{R_2}{R_1}

C

R1R2\sqrt{\frac{R_1}{R_2}}

D

R12R22\frac{R_1^2}{R_2^2}

Correct Answer

Option B

Detailed Explanation

When two conductors are connected, they have the same potential. The surface charge density is inversely proportional to the radius, so σ1σ2=R2R1\frac{σ_1}{σ_2} = \frac{R_2}{R_1}.

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